Chapter 1 Matter Energy Review
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| A proton has a _____________ charge. | positive
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| A proton is located in the atom’s ________________. | nucleus
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| A neutron has a ___________________charge. | neutral
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| A neutron is located in the atom’s __________________. | nucleus
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| An electron has a __________________ charge. | negative
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| An electron is found in an atom’s ___________________. | orbitals
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| An atom is __________ because it has the same number of protons and electrons. | neutral
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| __________________ ______________ are the electrons involved in bonding between atoms. | Valence electrons
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| The modern periodic table is arranged in order of increasing _________ ______________. | atomic number
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| An element’s location in the periodic table can be used to predict its __________. | properties
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| Elements in a column of the periodic table are in the same __________. | group
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| Elements in a group have the same number of ____________ __________. | valence electrons
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| Across a period of elements, the number of valence electrons ___________ from left to right. | increases
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| Elements in Group 1 have ___________ valence electron. | one
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| A _____________ change will change matter into one or more new substances. | chemical
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| The only sure evidence of a chemical reaction is the production of a __________ substance. | new
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| In a chemical reaction, __________ is either absorbed or released. | energy
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| ________________ chemical reactions absorb energy in the form of heat. | Endothermic
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| ________________ chemical reactions release energy in the form of heat. | Exothermic
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| Table salt, baking soda, and water are all examples of ________________. | compounds
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| A ________ ____________ is a shorter, easier way to show chemical reactions, using symbols instead of words. | chemical equation
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| _________________ are the substances on the left side of a chemical equation. | Reactants
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| In a chemical formula, __________________ show the ratio of atoms of different elements in a compound. | subscripts
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| The principle of ____________ of ______________ states that matter is not created or destroyed. | conservation of mass
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| In a ___________________ chemical reaction two or more substances combine to make a more complex substance. | synthesis
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| In a ______________ chemical reaction, the reactant is broken down into simpler products. | decomposition
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| In a _______________ chemical reaction, one element replaces another in a compound. | replacement
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| The ____________ __________ is the minimum amount of energy that has to be added to start a reaction. | activitation energy
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| An ____________________ is a material used to decrease the rate of reaction. | inhibitor
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| A _____________________ is a material used to increase the rate of a chemical reaction. | catalyst
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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